/* Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.activiti.engine.impl.bpmn.parser.handler;

import org.activiti.engine.impl.bpmn.parser.BpmnParse;
import org.activiti.engine.impl.pvm.process.ActivityImpl;
import org.flowable.bpmn.constants.BpmnXMLConstants;
import org.flowable.bpmn.model.BaseElement;
import org.flowable.bpmn.model.EventDefinition;
import org.flowable.bpmn.model.SignalEventDefinition;
import org.flowable.bpmn.model.ThrowEvent;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * @author Joram Barrez
 */
public class IntermediateThrowEventParseHandler extends AbstractActivityBpmnParseHandler<ThrowEvent> {

    private static final Logger LOGGER = LoggerFactory.getLogger(IntermediateThrowEventParseHandler.class);

    @Override
    public Class<? extends BaseElement> getHandledType() {
        return ThrowEvent.class;
    }

    @Override
    protected void executeParse(BpmnParse bpmnParse, ThrowEvent intermediateEvent) {

        ActivityImpl nestedActivityImpl = createActivityOnCurrentScope(bpmnParse, intermediateEvent, BpmnXMLConstants.ELEMENT_EVENT_THROW);

        EventDefinition eventDefinition = null;
        if (!intermediateEvent.getEventDefinitions().isEmpty()) {
            eventDefinition = intermediateEvent.getEventDefinitions().get(0);
        }

        nestedActivityImpl.setAsync(intermediateEvent.isAsynchronous());
        nestedActivityImpl.setExclusive(!intermediateEvent.isNotExclusive());

        if (eventDefinition instanceof SignalEventDefinition) {
            bpmnParse.getBpmnParserHandlers().parseElement(bpmnParse, eventDefinition);
        } else if (eventDefinition instanceof org.flowable.bpmn.model.CompensateEventDefinition) {
            bpmnParse.getBpmnParserHandlers().parseElement(bpmnParse, eventDefinition);
        } else if (eventDefinition == null) {
            nestedActivityImpl.setActivityBehavior(bpmnParse.getActivityBehaviorFactory().createIntermediateThrowNoneEventActivityBehavior(intermediateEvent));
        } else {
            LOGGER.warn("Unsupported intermediate throw event type for throw event {}", intermediateEvent.getId());
        }
    }

    //
    // Seems not to be used anymore?
    //
    // protected CompensateEventDefinition createCompensateEventDefinition(BpmnParse bpmnParse, org.activiti.bpmn.model.CompensateEventDefinition eventDefinition, ScopeImpl scopeElement) {
    // if (StringUtils.isNotEmpty(eventDefinition.getActivityRef())) {
    // if (scopeElement.findActivity(eventDefinition.getActivityRef()) == null) {
    // bpmnParse.getBpmnModel().addProblem("Invalid attribute value for 'activityRef': no activity with id '" + eventDefinition.getActivityRef() +
    // "' in current scope " + scopeElement.getId(), eventDefinition);
    // }
    // }
    //
    // CompensateEventDefinition compensateEventDefinition = new CompensateEventDefinition();
    // compensateEventDefinition.setActivityRef(eventDefinition.getActivityRef());
    // compensateEventDefinition.setWaitForCompletion(eventDefinition.isWaitForCompletion());
    //
    // return compensateEventDefinition;
    // }

}
